WO2024007697A1

WO2024007697A1 - Double-shaft ointment stirring device

Info

Publication number: WO2024007697A1
Application number: PCT/CN2023/090714
Authority: WO
Inventors: 刘克锋
Original assignee: 河北华胜科技有限公司
Priority date: 2022-07-04
Filing date: 2023-04-26
Publication date: 2024-01-11
Also published as: CN115178141A

Abstract

Disclosed in the present invention is a double-shaft ointment stirring device, comprising a machine base, the machine base being provided with a rotatable first stirring shaft and a rotatable second stirring shaft, the first stirring shaft being provided with a first stirring rod, the second stirring shaft being provided with a second stirring rod, the first stirring shaft and the second stirring shaft being both eccentrically arranged on a rotation seat, the rotation seat being rotationally connected to a first drive device, the first drive device being used for driving the rotation seat to rotate, and an outer edge of the first stirring rod and an outer edge of the second stirring rod being matched with an inner edge of a container containing ointments. The stirring device is widely applicable without stirring dead angles, and during a stirring process, will force ointments to exhaust air, such that the ointment after stirring is fully and uniformly mixed and has few air holes. The stirring shafts bear small stress and have long service life; and the stirring rods are easy to clean.

Description

A biaxial ointment mixing device

Technical field

The invention relates to the technical field of ointment preparation, and in particular to a biaxial ointment stirring device.

Background technique

Preparation of ointment is an extremely important process in the process of making ointment. Whether the ointment is stirred sufficiently and evenly directly determines the stability of the drug loading amount. This is an inevitable requirement for drug dosage in treatment and is also a concern of the medical regulatory authorities. Content. Traditional ointment mixing devices usually have a single-axis mixing structure. In order to increase the mixing degree of the single-axis stirring rod, multiple stirring teeth can be set on the single-axis stirring rod or multiple branched stirring rods can be extended. When mixing an ointment with excellent fluidity, the problem of uneven mixing is not obvious. When mixing an ointment with slightly poor fluidity or a slightly higher viscosity, the edge of the stirring tooth or branch stirring rod is in contact with the inner wall of the container holding the ointment (hereinafter referred to as the container). There is no coordination relationship, so the ointment easily adheres to the inner wall of the container, forming a mixing dead zone, resulting in uneven mixing of the ointment. Therefore, the traditional ointment mixing device has an extremely narrow scope of application. Even if the stirring teeth or the edge of the stirring rod are set to match the inner wall of the container, the stirring effect is not obvious because the upper and lower stirring teeth or the upper and lower branched stirring rods are not coherent structures, and the rotation is similar to a parallel movement and mixing mode. , causing the ointment to be mixed and stirred only in and near the parallel areas accessible to the stirring teeth and stirring rods, and the mixing strength of the ointment in other vertical areas was significantly weakened. At the same time, this kind of stirring structure cannot stir gel ointments, honey ointments, rubber ointments and other viscous ointments at all. Even if the traditional stirring device can barely stir the viscous ointments, by setting the number on the stirring shaft There are a large number of stirring teeth to stir the ointment in the entire container. It can be imagined that the torque endured by the stirring shaft at this time and the large vibration of the whole machine due to the unbalanced force of a single stirring shaft seriously affect the service life of the mixing motor. And it takes a very long time to stir the highly viscous ointment evenly, which is not only time-consuming but also affects the efficacy of the medicine. Even if a traditional mixing device can stir a highly viscous ointment evenly, a large amount of air will be mixed in during the mixing process, causing pores and affecting the quality and drug loading of the plaster patch. However, the traditional mixing device cannot mix the ointment at all. exhaust. In addition, when the traditional stirring device mixes a highly viscous ointment, it is common for the ointment to easily climb up along the stirring rod, which further affects the uniformity of the ointment mixing and causes trouble in the later cleaning of the stirring device.

technical problem

The purpose of the present invention is to provide a biaxial ointment stirring device that has a wide range of applications and no mixing dead ends. The ointment will be forced to exhaust during the stirring process. The stirred ointment is fully mixed, evenly mixed, has few pores, and the stirring shaft is subject to Small force, long service life, and the stirring rod is easy to clean.

Technical solutions

In order to achieve the above objects, the present invention adopts the following technical solutions:

A biaxial ointment stirring device includes a machine base, a first rotatable mixing shaft and a rotatable second mixing shaft are provided on the machine base, a first mixing rod is provided on the first mixing shaft, and a third mixing rod is provided on the first mixing shaft. A second stirring rod is provided on the two stirring shafts. The first stirring shaft and the second stirring shaft are both eccentrically arranged on the rotating base. The rotating base is rotationally connected to the first driving device. The first driving device is used to drive the rotating base to rotate. , the outer edge of the first stirring rod and the outer edge of the second stirring rod match the inner edge of the container holding the ointment.

Preferably, the outer edge of the first stirring rod and the second stirring rod are substantially tangent to the inner edge of the container holding the ointment, the first stirring shaft and the second stirring shaft are symmetrically arranged, and the first stirring rod and the second stirring rod are arranged symmetrically. The rods are basically S-shaped or arc-hook shaped.

Preferably, the first stirring rod and the second stirring rod are both rotationally connected with the second driving device.

Preferably, the first stirring shaft is rotationally connected to the first driving gear, the second stirring shaft is rotationally connected to the second driving gear, both the first driving gear and the second driving gear are rotationally connected to the second transmission shaft, and the second transmission shaft is rotationally connected to the second driving gear. The shaft is rotationally connected to the second driving device, and the second driving device drives the first driving gear and the second driving gear to rotate by driving the second transmission shaft, and then drives the first stirring shaft and the second stirring shaft to rotate, thereby realizing the first stirring. lever and the second stirrer lever rotate.

Preferably, the rotating base is rotationally connected to a first transmission shaft with a hollow structure, and the first transmission shaft is rotationally connected to a first driving device. The first driving device drives the first transmission shaft to drive the rotating base to rotate, thereby driving the rotation. The first stirring rod and the second stirring rod on the base rotate around the axis; the second transmission shaft is passed through the first transmission shaft and the second transmission shaft is coaxially arranged with the first transmission shaft.

Preferably, the first drive gear and the second drive gear are meshed with a common gear, and the common gear is provided on the second transmission shaft.

Preferably, the first stirring rod and the second stirring rod are each provided with a cutting edge extending along the extension direction of the first stirring rod and the second stirring rod.

Preferably, a liftable platform is also provided on the machine base, and the platform is arranged below the first stirring rod and the second stirring rod.

Preferably, the first stirring shaft and the second stirring shaft are fixed on the rotating base through a first bearing, a second bearing is passed through the second transmission shaft, and the outer ring of the second bearing is fixed on the first transmission shaft. The second transmission shaft and the first transmission shaft realize relative rotation through the second bearing.

Further preferably, the first transmission shaft is connected to the first driving device through a transmission mechanism, the first driving device is a first driving motor, and the second driving device is a second driving motor.

beneficial effects

In the above technical solution, the first stirring shaft and the second stirring shaft are eccentrically symmetrically arranged on the rotating base, so that the first stirring rod rotates around its own axis driven by the first stirring shaft to form an approximate cylinder that is basically tangent to the inner edge of the container. The first stirring rod stirs and mixes the first stirring zone and the nearby ointment, and the second stirring rod rotates around its own axis driven by the second stirring shaft to form an approximately cylindrical shape that is basically tangent to the inner edge of the container. In the second stirring zone, the second stirring rod stirs and mixes the second stirring zone and the nearby ointment. The rotating base drives the first stirring shaft and the second stirring shaft to rotate, thereby causing the first stirring zone and the second stirring zone to make a circular motion along the inner edge of the container, so that the first stirring zone and the second stirring zone pass through all areas of the inner edge of the container; Or only drive the first stirring rod and the second stirring rod to make a circular motion along the inner edge of the container, thereby achieving stirring and mixing of all the ointments in the container. The first stirring rod and the second stirring rod are S-shaped or arc-hook-shaped, and are integrated up and down. Designed so that when it rotates around its own axis, it can take into account any vertical area in the respective mixing zone, and scrape and cut the ointment on the inner edge of the container without stirring dead corners. By inserting the second transmission shaft into the first transmission shaft, the relative rotation of the second transmission shaft and the first transmission shaft is achieved, thereby achieving independent rotation control of the first stirring shaft and the second stirring shaft and independent rotation of the rotating base. Control, thereby realizing the first stirring zone and the second stirring zone to make a circular motion along the inner edge of the container; or only driving the first stirring rod and the second stirring rod to make a circular motion along the inner edge of the container, and only involving the first stirring rod and the second stirring rod. The second mixing rod rotates around its own axis to switch between three modes. When the first mixing rod and the second mixing rod make a circular motion along the inner edge of the container, they have a pulling effect on the ointment, which is similar to the life scene. When mixing dough, in order to make the dough reach a uniform and smooth state more quickly, one side is constantly stirred. Pull the ball to the other side to mix the ointment more quickly and evenly. The first stirring rod and the second stirring rod, which are basically S-shaped or arc-hook-shaped, cooperate with their own cutting edges to allow them to have an approximately spiral-guided conveying force when rotating around their own axis, which is different from the parallel mixing of conventional mixing teeth. When this structure rotates around its own axis and makes circular motion along the inner edge of the container, it generates a top-down, approximately spiral-guided conveying force and cutting force, forcing the ointment to exhaust while preventing the ointment from moving from bottom to top along the stirring rod. Climbing, the number of pores in the ointment is greatly reduced, the ointment is mixed more evenly, and the stirring rod is easier to clean. In addition, when the first stirring rod rotates around its own axis driven by the first stirring shaft, the first stirring rod only stirs and mixes the ointment in and near the first stirring zone, and the second stirring rod only stirs the second stirring rod. The ointments in the zone and near the second stirring zone are stirred and mixed, instead of using one stirring shaft to stir all the ointments in the container at the same time in the past. Therefore, the stress on the first stirring rod and the second stirring rod is greatly reduced. At the same time, the first stirring rod It forms a mutual balancing effect with the second stirring rod, and the vibration is greatly reduced. Therefore, the stirring device is not only suitable for stirring ointments with good fluidity, but also suitable for stirring ointments with poor fluidity and high viscosity.

Description of the drawings

Figure 1 is a schematic diagram of the overall biaxial ointment mixing device (the cross-sectional structure of the rotating base and the first transmission shaft, the platform is in a high position);

Figure 2 is a schematic diagram of the overall biaxial ointment mixing device (the cross-sectional structure of the rotating base and the first transmission shaft, the platform is in a low position);

Figure 3 is a partial enlarged schematic diagram;

Figure 4 is a three-dimensional structural diagram of the first mixing rod;

Figure 5 is a three-dimensional structural view of the first stirring rod from another perspective.

Embodiments of the invention

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 5, this biaxial ointment mixing device includes a machine base 1. The machine base 1 is provided with a first stirring shaft 2 that can rotate around its own axis and a second mixing shaft 3 that can rotate around its own axis. , the first stirring shaft 2 is provided with a first stirring rod 21 that is basically S-shaped or arc hook-shaped, and the second stirring shaft 3 is provided with a second stirring rod 31 that is basically S-shaped or arc-hook shaped. The stirring shaft 2 and the second stirring shaft 3 are both eccentrically arranged on the rotating base 4. The rotating base 4 is rotationally connected to the first driving device 5. The first driving device 5 is preferably a first driving motor to drive the rotating base 4 to rotate. The stirring shaft 2 and the second stirring shaft 3 are arranged symmetrically. The outer edge 22 of the first stirring rod and the outer edge 32 of the second stirring rod match the inner edge of the container 10 holding the ointment. This state is preferably the outer edge of the first stirring rod. 22 and the outer edge 32 of the second stirring rod are substantially tangent to the inner edge of the container 10, and when the first stirring rod 21 rotates, the outer edge 22 of the first stirring rod can just extend substantially to the center of the container 10 or exceed the center of the container 10 and be close to the second When the stirring shaft 3 and the second stirring rod 31 rotate, the outer edge 32 of the second stirring rod can basically extend to the center of the container 10 or exceed the center of the container 10 and be close to the first stirring shaft 2, but the outer edge 22 of the first stirring rod and the second stirring rod 31 can rotate. The rod outer edges 32 will not collide with each other during rotation. In this way, the first stirring rod 21 rotates around its own axis driven by the first stirring shaft 2 to form an approximately cylindrical first stirring zone that is basically tangent to the inner edge of the container 10. The ointment is stirred and mixed. The second stirring rod 31 is driven by the second stirring shaft 3 and rotates around its own axis to form an approximately cylindrical second stirring zone that is basically tangent to the inner edge of the container 10. The second stirring rod 31 is responsible for the second stirring zone. Stir the ointment in and around the area to mix. The first driving device 5 drives the rotating base 4 to rotate, thereby driving the first stirring shaft 2 and the second stirring shaft 3 to rotate, thereby causing the first stirring zone and the second stirring zone to make a circular motion along the inner edge of the container, so that the first stirring zone and the second stirring zone passes through all areas of the inner edge of the container; or only drives the first stirring rod 21 and the second stirring rod 31 to make a circular motion along the inner edge of the container, and the first stirring rod 21 and the second stirring rod 31 are S-shaped or arc-shaped. The hook-shaped hook-shaped integrated upper and lower penetration design allows it to take into account any vertical area in the respective mixing zone when rotating around its own axis, and scrape and cut the ointment on the inner edge of the container 10 to prevent the ointment from adhering to the inner edge of the container 10 and affecting the ointment. Mixing uniformity, therefore this kind of stirring structure has no stirring dead spots, and can achieve stirring and mixing of all ointments in the container 10 . When the fluidity of the ointment to be stirred is poor, when the first stirring rod 21 and the second stirring rod 31 make a circular motion along the inner edge of the container 10, they will also have a pulling effect on the ointment, similar to the dough in life scenes. In order to make the dough reach a uniform and smooth state more quickly, the dough from one side is continuously pulled to the other side. The above two motion states are combined to make the ointment mix more quickly and evenly. The first stirring rod 21 and the second stirring rod 31, which are basically S-shaped or arc hook-shaped, have an approximate spiral-guided conveying force when they rotate around their own axes, which is different from the parallel stirring of conventional stirring teeth, making this structure in its When it rotates around its own axis and makes circular motion along the inner edge of the container, it generates an approximately spiral conveying force, forcing the ointment to exhaust and reducing the pores in the ointment. In addition, when the first stirring rod 21 rotates around its own axis driven by the first stirring shaft 2, the first stirring rod 21 only stirs and mixes the ointment in and near the first stirring zone, and the second stirring rod 31 only The ointment in and near the second stirring zone is stirred and mixed, instead of using one stirring shaft to stir all the ointments in the container at the same time as in the past, so the stress on the first stirring rod 21 and the second stirring rod 31 is greatly reduced. , at the same time, the first stirring rod 21 and the second stirring rod 31 form a mutual balancing effect, and the vibration is greatly reduced.

In a preferred embodiment, the first stirring rod 21 and the second stirring rod 31 are both rotationally connected with the second driving device 6, and the second driving device 6 is preferably a second driving motor. Specifically, the first stirring shaft 2 is coaxially connected to the first driving gear 23, the second stirring shaft 3 is coaxially connected to the second driving gear 33, and both the first driving gear 23 and the second driving gear 33 are connected to the first driving gear 23. The two transmission shafts 34 are rotationally connected, and the second transmission shaft 34 is rotationally connected with the second driving device 6. The second driving device 6 drives the second transmission shaft 34 to simultaneously drive the first driving gear 23 and the second driving gear 33 to rotate. The first stirring shaft 2 and the second stirring shaft 3 are driven to rotate, thereby realizing the rotation of the first stirring rod 21 and the second stirring rod 31 . A coaxial common gear 35 is provided on the second transmission shaft 34, and the first driving gear 23 and the second driving gear 33 are meshed with the common gear 35, so that the second transmission shaft 34 can drive the first driving gear at the same time. The gear 23 and the second driving gear 33 rotate, so that the first stirring shaft 2 and the second stirring shaft 3 are symmetrically balanced and rotate in the same direction, and can also avoid the rotation process of the first stirring rod outer edge 22 and the second stirring rod outer edge 32. Collide and interfere with each other.

In a preferred embodiment, the rotating base 4 is rotationally connected to the first transmission shaft 41 with a hollow structure. The first transmission shaft 41 is rotationally connected to the first driving device 5. The first driving device 5 drives the first transmission shaft 41 to thereby The rotating base 4 is driven to rotate, thereby driving the first stirring rod 21 and the second stirring rod 31 on the rotating base 4 to rotate around the axis; the second transmission shaft 34 is passed through the first transmission shaft 41 and the second transmission shaft 34 It is arranged coaxially with the first transmission shaft 41, thereby achieving independent rotation control of the first stirring shaft 2, the second stirring shaft 3 and the independent rotation control of the rotating base 4, thereby realizing the first stirring zone and the second stirring zone along the interior of the container. The edge makes a circular motion; or it only drives the first stirring rod 21 and the second stirring rod 31 to make a circular motion along the inner edge of the container, and it only involves the rotation of the first stirring rod 21 and the second stirring rod 31 around its own axis. Conversion makes the ointment mix more quickly and evenly. In order to improve the rotation reliability of each component, the first stirring shaft 2 and the second stirring shaft 3 are each fixed on the rotating base 4 through two to three first bearings 24, and the second transmission shaft 34 is provided with a second bearing. 36. The outer ring of the second bearing 36 is fixed on the first transmission shaft 41. The arrangement of the second bearing 36 enables the second transmission shaft 34 and the first transmission shaft 41 to realize relative rotation. The second transmission shaft 34 protrudes from the first transmission shaft 41 and is rotationally connected to the second driving device 6. The first transmission shaft 41 is connected to the first driving device 5 through the transmission mechanism 43 to prevent the first driving device 5 from being connected to the second driving device 6. If bit interference occurs, the transmission mechanism 43 may be gear transmission, chain transmission or belt transmission.

In a preferred embodiment, a liftable platform 7 is also provided on the base 1. The platform 7 is provided below the first mixing rod 21 and the second mixing rod 31 to place and drive the container 10 up and down to achieve the first step. The stirring rod 21 and the second stirring rod 31 are inserted into and separated from the container.

In a preferred embodiment, the first stirring rod 21 and the second stirring rod 31 are also provided with a cutting edge 8 extending along the extension direction of the first stirring rod 21 and the second stirring rod 31. The cutting edge 8 can be provided with 2 to 4 and the outermost cutting edges are tangent to the inner edge of the container, further improving the effect of the first stirring rod 21 and the second stirring rod 31 in scraping the inner wall of the container. At the same time, in conjunction with the S-shaped or curved hook-shaped first When the stirring rod 21 and the second stirring rod 31 rotate around their own axes and make circular motions along the inner edge of the container, they generate a top-down conveying force that is approximately a spiral guide and a cutting force that is approximately a cutting edge, instead of the first The entire arc surface of the stirring rod 21 and the second stirring rod 31 is directly rotated with the ointment, forcing the ointment to exhaust and effectively preventing the ointment from climbing along the stirring rod from bottom to top, further improving the uniformity of the ointment mixing, and making the stirring rod easier clean.

In the above technical solution, after placing the ointment to be stirred in the container 10 , the platform 7 is lifted so that the first stirring rod 21 and the second stirring rod 31 are inserted into the interior of the container 10 . The second driving device 6 is controlled to rotate, and the second driving device 6 drives the second transmission shaft 34 to simultaneously drive the first driving gear 23 and the second driving gear 33 to rotate, thereby driving the first stirring shaft 2 and the second stirring shaft 3 in the same direction. , symmetrical rotation, thereby realizing the first stirring rod 21 and the second stirring rod 31 to rotate around their own axes, so that the first stirring shaft 2 and the second stirring shaft 3 are symmetrically balanced and rotate in the same direction. The first stirring rod 21 stirs and mixes the ointment in the first stirring zone and its vicinity, and the second stirring rod 31 stirs and mixes the ointment in the second stirring zone and its vicinity. The first driving device 5 drives the rotating base 4 to rotate through the first transmission shaft 41, thereby driving the first stirring shaft 2 and the second stirring shaft 3 to rotate, thereby causing the first stirring zone and the second stirring zone to make a circular motion along the inner edge of the container. , so that the first stirring zone and the second stirring zone pass through all areas of the inner edge of the container; or only drive the first stirring rod 21 and the second stirring rod 31 to make a circular motion along the inner edge of the container, the first stirring rod 21 and the second stirring rod When 31 rotates around its own axis, it takes into account any vertical area in the respective mixing zone, and scrapes and cuts the ointment on the inner edge of the container 10 to achieve stirring and mixing of all the ointments in the container 10 . When the first stirring rod 21 and the second stirring rod 31 make a circular motion along the inner edge of the container 10, they will also have a pulling effect on the ointment, so that the ointment is mixed more quickly and evenly. The first stirring rod 21 and the second stirring rod 31, which are basically S-shaped or arc-hook-shaped, generate an approximately spiral conveying force when they rotate around their own axes and move in a circular motion along the inner edge of the container, forcing the ointment to exhaust and reduce the dosage of the ointment. pores inside. Therefore, the stirring device is not only suitable for mixing ointments with good fluidity, but also suitable for stirring ointments with poor fluidity and high viscosity.

This embodiment only illustrates the concept and implementation of the present invention, and does not limit it. Under the concept of the present invention, technical solutions without substantial transformation are still within the scope of protection.

Claims

A biaxial ointment stirring device includes a machine base, characterized in that a rotatable first stirring shaft and a rotatable second mixing shaft are provided on the machine base, and a first rotatable stirring shaft is provided on the first mixing shaft. Stirring rod, a second stirring rod is provided on the second stirring shaft, the first stirring shaft and the second stirring shaft are both eccentrically arranged on the rotating base, the rotating base is rotationally connected to the first driving device, and the first driving device is used for The rotating base is driven to rotate, and the outer edges of the first stirring rod and the second stirring rod match the inner edges of the container holding the ointment.
The biaxial ointment stirring device according to claim 1, wherein the outer edges of the first stirring rod and the second stirring rod are substantially tangent to the inner edge of the container holding the ointment, and the first stirring shaft and the second stirring rod are substantially tangent to the inner edge of the container holding the ointment. The two stirring shafts are arranged symmetrically, and the first stirring rod and the second stirring rod are basically S-shaped or arc hook-shaped.
The biaxial ointment stirring device according to claim 1 or 2, characterized in that the first stirring rod and the second stirring rod are both rotationally connected with the second driving device.
The biaxial ointment stirring device of claim 3, wherein the first stirring shaft is rotatably connected to the first driving gear, the second stirring shaft is rotatably connected to the second driving gear, and the first driving gear and the second driving gear are rotatably connected. The driving gears are all rotationally connected to the second transmission shaft, and the second transmission shaft is rotationally connected to the second driving device. The second driving device drives the second transmission shaft to drive the first driving gear and the second driving gear to rotate, and then drives the first driving gear. The stirring shaft and the second stirring shaft rotate, thereby realizing the rotation of the first stirring rod and the second stirring rod.
The biaxial ointment stirring device of claim 4, wherein the rotating base is rotatably connected to a first transmission shaft having a hollow structure, the first transmission shaft is rotatably connected to a first driving device, and the first driving device passes through The first transmission shaft is driven to drive the rotating base to rotate, thereby driving the first stirring rod and the second mixing rod on the rotating base to rotate around the axis; the second transmission shaft is penetrated in the first transmission shaft and the second transmission shaft The shaft is coaxially arranged with the first transmission shaft.
The biaxial ointment stirring device of claim 5, wherein the first driving gear and the second driving gear are both meshed with a common gear, and the common gear is provided on the second transmission shaft.
The biaxial ointment stirring device according to claim 1 or 2, characterized in that, the first stirring rod and the second stirring rod are each provided with a rod extending along the extension direction of the first stirring rod and the second stirring rod. Cut edges.
The biaxial ointment stirring device according to claim 1 or 2, characterized in that a lifting platform is also provided on the base, and the platform is arranged below the first stirring rod and the second stirring rod.
The biaxial ointment stirring device according to claim 5, wherein the first stirring shaft and the second stirring shaft are fixed on the rotating base through a first bearing, and a second bearing is passed through the second transmission shaft. , the outer ring of the second bearing is fixed on the first transmission shaft, and the second transmission shaft and the first transmission shaft achieve relative rotation through the second bearing.
The biaxial ointment stirring device of claim 3, wherein the first transmission shaft is connected to the first driving device through a transmission mechanism, the first driving device is a first driving motor, and the second driving device is a second driving device. motor.